SOPRA 4897 is an SBS-modified bitumen venting base sheet for use in approved multiply membrane and flashing assemblies. SOPRA 4897 is composed of a proprietary formulation of elastomeric styrene-butadiene-styrene (SBS) polymer modified bitumen and is reinforced with a high quality random glass fiber mat. The topside is surfaced with fine mineral aggregate while the underside is surfaced with mineral granules to facilitate venting characteristics.
- Component Base
- Installation Method Mechanically Attached
- Reinforcement Glass Fiber
- Thickness 120 mils (3.1 mm)
- Topside Sanded
- Underside Sanded
Prior to installation, unroll SOPRA 4897 onto the roof surface and allow to relax. Position SOPRA 4897 in desired position and fasten to nailable substrate. Subsequent approved inter-ply or cap ply membranes are applied to SOPRA 4897 via cold adhesive or heat welding. Refer to the SOPREMA SBS Roofing Guide for additional application guidelines.
SOPRA-ISO HD is a high density rigid polyisocyanurate panel designed for use as a cover board in approved multi-ply membrane…View Product
Cleveland Clinic – Cleveland, Ohio
Cleveland Clinic’s main campus consists of 41 buildings on about 140 acres near University Circle, Cleveland. They operate 14 family health and ambulatory surgery centers in surrounding communities and a multispecialty hospital and family health center in Weston, Florida. Various SOPREMA® systems have been chosen for their waterproofing needs.
JP Morgan Chase – New York, New York
JP Morgan Chase turned to SOPREMA for a permanent solution to several unique waterproofing issues. The answer was a fully reinforced, low odor ALSAN RS 260 LO PMA System with a slip resistant surfacing layer that offers a 20 year guaranteed waterproofing solution.